What Kind Of Juice Cleans Pennies Best Science Project Research?


What Kind Of Juice Cleans Pennies Best Science Project Research?

Those tart little lemons work to remove copper oxide because they contain citric acid. Since lemon juice has the highest concentration of citric acid of any fruit, it works the best.

Which liquid cleans pennies the best science fair project?

Vinegar and lemon juice both work really well for cleaning pennies. But, ketchup was the clear winners for our pennies, with soy sauce next, maybe with a little more time they would have gotten a little bit cleaner. This is a fun experiment to try with younger kids!

What juice or liquid cleans pennies the best?

Vinegar (or Lemon Juice) and Salt This method is the best way to clean your pennies, and it will produce a very bright orangey-copper color on your pennies. It does this by using the low levels of acids that are contained naturally in vinegar and lemon juice to remove the patina (brown oxidation) on the penny.

Which liquid cleans pennies the best procedure?

Copper oxide dissolves in a mixture of weak acid and table salt-and vinegar is an acid. You could also clean your pennies with salt and lemon juice or orange juice, because those juices are acids, too.

What cleans a penny better experiment?

Cleaning Pennies Science Experiment Explained

Washing the pennies in a vinegar and salt solution removes the patina from the pennies, exposing the brighter copper underneath once more.

What are good science fair projects?

Science Fair Ideas
  • Does music affect on animal behavior?
  • Does the color of food or drinks affect whether or not we like them?
  • Where are the most germs in your school? (CLICK for more info.)
  • Does music have an affect on plant growth?
  • Which kind of food do dogs (or any animal) prefer best?
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How do you clean old coins without devaluing them?

Add distilled water and a small amount of dish soap to your shallow bowl. Stir together until the soap is sudsy, then add your coins to the bowl. Gently scrub them with either a soft toothbrush or your fingers. Be extremely gentle!

What liquid cleans copper the best?

Mix 1/2-cup distilled white vinegar (or lemon juice, which is more acidic) with 1 Tbsp. salt and enough flour to form a thin paste. Apply the paste to the copper surface and scrub away the tarnish with a cloth or scrubbing sponge.

Why does lemon juice clean pennies better than vinegar?

Vinegar has a pH level of 3.0, while lemon juice has a pH level of 2.3. This means that lemon juice is a slightly stronger acid than vinegar. The stronger the acid, the better it will clean copper pennies.

Why does lime juice clean pennies?

Lemon and lime juices contains citric acid, which will dissolve the copper oxide. As a result, the penny is shiny once again.

What is the science behind cleaning pennies?

Pennies get dull and dirty because the copper in the pennies reacts with oxygen in the air to form copper oxide. When you put your pennies in a vinegar and salt mix, the vinegar and salt react together and remove the copper oxide.

What does vinegar do to a penny?

The combination of vinegar (a weak solution of acetic acid), and table salt (sodium chloride) helps to dissolve the copper oxide, and also forms the blue copper(II) ion, which is soluble in water. The penny becomes shiny again!

What is the best way to clean a dirty coin?

Follow These Steps:
  1. In a jar, combine one cup vinegar (or lemon juice) and 1 tablespoon salt. …
  2. Pour the solution into the plastic container. …
  3. Add the coins in a single layer, so none of the coins are touching. …
  4. When you remove the coins and wipe them with a cloth or paper towel, they should look shiny.

Which science project is best?

Here are some popular science fair projects that give a lot of bang for the buck.
  • Baking Soda and Vinegar Volcano. …
  • Mentos and Soda Fountain. …
  • Invisible Ink. …
  • Crystal Growing. …
  • Vegetable Battery. …
  • Wind Energy. …
  • Water Electrolysis. …
  • Plant Science.

What is the easiest science project?

Easy Vinegar and Baking Soda Volcano

The chemical volcano is a popular science project because it is very easy and yields reliable results. The basic ingredients for this type of volcano are baking soda and vinegar, which you probably have in your kitchen.

What is the easiest science fair project?

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Can vinegar damage coins?

Baking Soda And Vinegar – Great For Science Fair Volcanoes But Not For Enhancing Your Coins’ Value. … In fact, it works so well that, like the other coin cleaning brews mentioned here, it can completely strip away the original patina and obliterate the value of the coin.

Can Coca Cola clean pennies?

Soaking them in Coca-Cola can clean up the coins. The acidic nature of the soda eats away the dirt and rust, leaving a shiny penny. Don’t leave pennies in Coca-Cola for too long, however, or the soda could damage the coins. … Soak pennies for about 24 hours.

How much is a 1943 steel penny worth?

According to USA Coin Book, a steel penny from 1943 in circulated condition is worth between 16 cents and 53 cents. However, Heritage Auctions sells 1943 steel pennies in pristine, uncirculated condition for more than $1,000.

How do you clean copper coins?

Copper coins often turn a muddled brown color, and these marks can be cleaned off with salt and a mild acid like white vinegar. Use a stronger acid like ketchup or cola to strip away the green patina that forms when copper is exposed to salt and water.

What chemical will clean copper?

Acetic acid– This is perhaps one of the most commonly used materials to clean copper. A lot of people may not know this but acetic acid is readily available in almost every household in the form of vinegar. Though acetic acid is quite weak and not as potent as citric acid, it does the job of clean copper pretty well.

How do you clean badly tarnished copper?

Vinegar and Salt

Rub a mixture of 1 tablespoon of table salt and 1 cup of white vinegar onto the copper with a soft cloth and rinse. Or, immerse the tarnished copper into a pot of 3 cups of water and the salt-vinegar mixture, bring to a boil and boil until the grime and tarnish comes off.

Does hydrogen peroxide clean pennies?

Hydrogen peroxide can prove effective in removing various materials, including organic material. To clean using this method, place your coins in a small plastic container, fill with enough hydrogen peroxide to cover, and soak for 24 hours.

Why does ketchup clean pennies the best?

Why it works:

The best way to do this is with an acid and salt. Ketchup contains vinegar, a weak acid, which breaks down the copper oxide on the surface of the penny. … These ions bond with the copper, forming copper chloride. The copper chloride helps the vinegar further break down the copper oxide.

Will lime juice clean coins?

Lemon and Lime juice are both acids. They erode whatever they come in contact with if given the proper amount of time. So don’t leave your coin in the acid for more than 30 minutes or your coins major features will dissolve. Put the acid in the jar along with the coin.

What cleans a penny better water or vinegar?

The salt and acetic acid in vinegar do the trick. Hot sauce, like Tabasco or taco sauce, also will remove the oxides off pennies. As in ketchup, salt and vinegar are both in hot sauce. Coke and off-brand colas will quickly remove the tarnish.

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How does orange juice clean pennies?

The citric acid removes the copper oxide from the penny and rinses away the loosened dirt and grime. The acid is not strong enough to dissolve the copper itself, so all that is left is the clean, shiny copper surface.

Does pickle juice clean pennies?

Pickle juice is actually a vinegar. The reason pickle juice cleans a penny so well is it contains acetic acid, which breaks down copper oxide. … Those tart little lemons work to remove copper oxide because they contain citric acid.

How do you make pennies shiny experiment?

  1. Add vinegar to one bowl (enough to cover penny)
  2. Add soap to a second bowl (enough to cover penny)
  3. Add water to a third bowl (enough to cover penny)
  4. Make a hypothesis of which liquid will make a penny shine. …
  5. Wait 20 minutes. …
  6. Rinse pennies and dry with towel.

What liquid corrodes a penny faster?

Vinegar. Acid speeds up the oxidation process taking place on copper. If you submerge a penny in even a relatively mild household acid, such as vinegar, it will start to tarnish. Some people recommend the use of vinegar combined with other ingredients, such as salt, to clean pennies.

Is the tarnishing of a copper penny a chemical reaction?

As they are exposed to the environment, pennies become coated with a layer of copper oxide, making them look tarnished (with a dull, brown, dirty appearance). … The chemical reaction that dissolves the copper oxide on your pennies is an ongoing process.

How do you make copper pennies green?

When copper is exposed to oxygen, it forms molecules called copper oxide that make pennies look dirty. Pouring vinegar over the pennies helps break up this copper oxide and expose the pure copper on the penny. As the penny dries and is exposed to the air, a chemical reaction occurs and the penny turns green!

How do you remove copper from Patina?

Mix 1/4 cup salt, 1/4 cup flour and enough vinegar to make a thick paste. Use a soft cloth to rub the paste on the surface of the copper. Buff the copper item until it shines. Rinse with warm water and dry thoroughly.

What household items can clean coins?

Here’s our surefire way to clean tarnished coins:
  • In a plastic container like those for storing your leftover foods or a small child sized bucket, add 1 cup of white vinegar and soak 4-5 coins in it. …
  • Take the coins out and sprinkle some baking soda over them; then use a soft-bristled toothbrush to brush them clean.

How do you clean steel pennies?

Mix 2 tablespoons of lemon juice and 1 tablespoon of water… mix well and soak pennies for a few minutes and the rust should come off.

Can Ketchup Clean a Penny? #sciencegoals

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